Year	Percent change
1980	-6.5
1981	1.9
1982	-6.3
1983	-5.1
1984	-3
1985	-0.9
1986	-2.4
1987	-8.8
1988	10.8
1989	2.3
1990	-1.5
1991	-13.799
1992	3.9
1993	-2.2
1994	-7
1995	11.3
1996	11.2
1997	7
1998	2.2
1999	-0.9
2000	-0.1
2001	4.902
2002	3.747
2003	6.19
2004	7.305
2005	4.919
2006	5.767
2007	5.099
2008	4.149
2009	3.017
2010	5.163
2011	5.847
2012	2.697
2013	2.931
2014	0.254
2015	-3.414
2016	-5.56
2017	1.691
2018	2
2019	2.2
2020	2.5
2021	2.1
2022	2.5
2023	3
2024	3